https://www.alfredapp.com/help/workflows/inputs/script-filter/json/
autocomplete field seems not to be applicable to mods field.
It would be helpful to support this option to mods objects.
Sometimes it is necessary to expand other words with the mods key when creating a workflow.

Web bookmarks of Alfred provide search functionality for Safari and Chrome.
How about supporting to delete or edit bookmarks?
Currently, there is one action for the searched bookmark. Please add some modifier in the configuration screen, perform delete or edit bookmark with the modifier key.
Please let me know what you think.

I considered the feature you suggested in design phase, I decided not to add it because this makes the workflow too complicated.
If you have pinboard.in account, you can modify comment/description of bookmark in pinboard.in web page and be able to re-download it.